Measuring Drills - Special Applications (From Measuring Cycles Sw 6.3) - Siemens SINUMERIK 840D sl Programming Manual

Measuring cycles
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6.3.8
Measuring drills – special applications (from measuring cycles SW 6.3)
Function
If drills are used on lathes with a length correction (offset) as for milling machines (SD
42950: TOOL_LENGTH_TYPE=0), then a drill can also be measured (gauged) in this
application.
Length L1 is always calculated in the applicate (tool offset axis) of the current plane G17 to
G19. This also characterizes the position of the tool. The usual position definition in _MVAR
(5th digit) is no longer relevant and is ignored.
G17: L1 in Z axis (corresponds to axial position)
G18: L1 in Y axis (no turning machine application)
G19: L1 in X axis (corresponds to radial position)
Length L1 is determined if the following conditions are satisfied:
• the active tool is of type 2xy (drill)
• SD 42950: TOOL_LENGTH_TYPE=0
• G17 or G19 are active and
• A measuring variant is set:
A measuring axis specified in _MA is ignored. The 3rd axis (applicate) is used within the
cycle. Otherwise the description of the measuring variant applies.
Prerequisite
The tool probe has been calibrated with G18 active as is usual for turning tools.
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
– _MVAR=1: Measuring (relative to the machine)
– _MVAR=11: Measuring (relative to the workpiece)
– _MVAR=1000x1: Incremental measuring (relative to the machine or workpiece)
Measuring Cycles for Turning Machines
6.3 CYCLE982 tool: Measure turning and milling tools
6-55

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